Churn.



J. G. SMITH.

CHURN.

APPLICATION FILED SEPT. 24, 1913.

m'wm, Patented Feb. 2. 1915.

JOHN GILLALM SMITH, OF MGIVIINNVILLE, TENNESSEE.

CI-IURN.

Specification of Letters Patent.

Patented Feb. 2, 1915.

Application filed September 24, 1913. Serial No. 791,583.

To all whomit may concern:

Be it known that 1, JOHN GILLAM SMITH, a citizen of the United States, residing'at Mchziinnville, in the county of \Varren and State of Tennessee, have invented certain new and useful Improvements in Churns; and I do declare the following to'be a full, clear, and exact description of the invention, such as will enable others Skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in churns, more epecially that type which may be termed body-working or dasherless.

The invention has for its object to provide for removably retaining the closure in suitable liquid tight position upon the receptacle.

A further object is to provide for facilitating the attachment or application of the liquid tight packing to the receptacle closure, the same being effected without extraneous fastenings or fastening means outside of the closure itself.

A still further object is to provide for effecting the clamping action between the re ceptacle closure and its securing or clamping means "attended with more or less resiliency or yielding action. 7

a. still further object is to provide a closure which shall be quite light in construction and yet be durable and substantial.

A still further object is to carry out the aforesaid ends in a simple,inexpensive and effective manner. i

The invention therefore consists of certain instrumentalities and features of construction substantially as hereinafter fully disclosed and defined by the appended claim.

In the accompanying drawings is illustrated the preferred embodiment of my invention wherein it will be understood that various changes and modifications may be made as to the detailed construction and arrangement of the parts without departing from the spirit of my invention, and in which drawing- Figure 1 is an elevation. Fig. 2 is a detailed sectional view of the receptacle closure in position upon the receptacle, the latter being only partly shown. Fig. 3 is a bottom plan view of the closure.

In carrying out my invention, I rotatably mount or support in position a receptacle or body 1 again referred to upon a suitable frame or structure 2. The rotatably supporting or mounting means for the receptacle or body 1 includes stub-shafts, journals or trunnions 5 received within registering notches or bifurcations 6 in the upper convergent or meeting ends of the lat eral members of the leg-forming frames 2, said trunnions or journals uniting with the transverse connecting member 4 to hold the various parts of the support in upright position. These trunnions or journals are provided with shoulders or enlargements as at '5 to form stops to centralize the position of the churn body, said stops or shoulders abutting against the leg-forming members. These trunnions or journals are integral with and extend about "centrally from the lateral upright membersof a metallic frame 7 adapted to receive or encompass the churn body or receptacle. The horizontal circular members of said frame are split and have outstanding apertured terminals or ears 8 which receive nut-equipped clamping bolts 9 and whereby said frame may be adjusted thereon to provide for balancing the churn body to upright position with its contents, as is obvious, which is expedient in conducting the churning operation. One of the trunnions or journals has suitablvfixed or removably attached thereto a handle-equipped I member or crank 10 for the convenient actuation of the churn body in effecting the churning operation. 7

The churn body or receptacle 1 in its general outline is cylindrical, the medial portion 1 being a true cylinder, while its end portions 1 gradually converge outwardly, or upwardly and downwardly, respectively, as clearly shown, whereby the contents thereof receive, as the churn body is actuated or rotated and said contents are thus thrust against said inclined or convergent portions of the churn body, a compressing action and thus provide for the more efiective expulsion of the resulting air accumulation or congestion and accordingly pro mote or expedite the churning operation.

A closure or cover 11 of sheet metal is suitably fitted to the open end or entrance of the churn body or receptacle, said closure being preferably concave-convex in its general contour,-and crimped or corrugated, as indicated at 12, along radial lines converging adj acent the central portion 13 of said closure for reinforcing or guarding the same against buckling or readily bending when subjected to pressure in clamping it to closed position upon the churn body as presently seen. The plane portion 18, however, is produced horizontally or flattened to a point joining the convex upper surface of the closure to afford a broad square bearing surface for the foot or block 22 of the clamping device 21, the thrust delivered by the latter to the closure being thus received upon the bracing concavo-convex surface of the closure. The closure 11, furthermore, is provided with a rim or marginal portion 14 upwardly bent or upstanding from an annular depression 15 at the base of the convex surface of the closure, said upstanding rim or marginal portion being of substantially dovetailed contour in transverse section, as clearly seen in Fig. 2, to receive and retain against effective displacement a filler or packing 16. This filler or packing is preferably of cork or like material to rest upon the upper edge of the churn body around its opening for providing a liquid tight joint at that point, thus preventing the possible accidental escape or leakage of the churn body contents when said churn body is being whirled or rotated in effecting the conversion of its contents.

A metallic yoke member 17, preferably upwardly arched or bowed and produced with strengthening or bracing ribs 18 upon its upper surface, is adapted to be received at its horizontally extending end portions or terminals 19 within keepers 2O upstanding at opposite points from the top edge of the churn body, one of said keepers being open at one end for the insertion laterally or horizontally thereinto in effecting engagement between said yoke and said keeper, as will be readily appreciated.

A clamping device 21 is provided for the effective retention of the closure or cover 11 in clamped position upon the churn body or receptacle 1, said clamping device including a foot or block 22, preferably of wood, for its more or less resilient or yielding character, and a screw-threaded stem 23 in practice threaded into the yoke 17 and swiveled or held in said block or foot for independent rotatable movement within the latter in effecting the clamping of said foot or piston upon the plane central portion 13 of the churn body closure 11, as will be readily appreciated.

As above stated, the wooden piston or foot being more or less resilient or yielding it will serve as a cushion in efiecting the clamping action thereof upon the light metal closure under the action of the screw or stem of the clamping device as would not otherwise be the case, and thus obviate the tendency of bending or mutilating the closure.

I claim:

A churn having a removable closure of light metal, said closure having a convexed upper surface in general outline, a central plane portion on said convexed surface fiattened to a point joining the converted upper surface to afford a broad flat bearing surface, the said upper conveXed bearing surface being crimped along radial lines extending from the termination of said central flattened surface to receive the thrust therefrom, an upstanding annular rim at the periphery of the closure, the side walls of which converge toward their bottoms to form a sub stantially dovetailed recess, and a suitable flexible filling; within said dovetailed recess,

substantially as described.

In testimony whereof, I alliX my slgnature, in presence of two witnesses.

JOHN GILLAM SMITH.

WVitnesses:

B. M. CANTRELL, FLORENCE SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

